ASTM A563 DH Anco Pin-Lock Nuts, Galvanized
Anco lock nuts are manufactured from heavy hex ASTM A563 Grade DH nuts that have an added stainless steel ratchet pin. The ratchet pin slides along the threads as the nut is threaded onto the bolt, which prevents the nut from backing off. The Anco style lock nut has an added feature in that the ratchet pin can be bent so that the nut can be removed, if needed. Dimensional specifications are governed by ASME B18.2.2. Available in hot dipped galvanized finish for corrosion resistance.
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